Apparatus for winding or reeling continuous strands of material



y 9, 1951 e. WERNER mm. 2,983,456

APPARATUS FOR wmomc OR REELING CONTINUOUS STRANDS OF MATERIAL Filed March 13. 1959 APPARATUS FOR WINDING R REELING CON- TINUOUS STRANDS 0F MATERIAL Giinther Werner, Reinbek, Hamburg, and Hugo Basler,

Hamburg, Germany, assignors to Hanseatische Motoren-Gesellschaft m.b.H., Hamburg-Bergedorf, Germany Filed Mar. 13, 1959, Ser. No. 799,135

6 Claims. (Cl. 242-54.4)

The invention relates to apparatus for winding or reeling strands of material and particularly to an automatic device by which a .fibre strand, strip or sliver (for example, a carding sliver, a roving .or a doubling) of the kind commonly encountered in the textile industries is wound upon a core and in which the supply of empty cores as well as the severance of the strip or sliver and the ejection of the completed winding is efifected automatically.

In the known devices the fibre strip or sliver, the

width of which is normally smaller than that of the coil to be produced, is wound upon the core until a previously determined and adjustable number of turns have been attained. Then the machine is stopped, the fibre strip or sliver severed and the finished winding removed manually or mechanically from the conveyor rolls and an empty core withdrawn from a magazine and fed to the conveyor rolls.

Substantial interruptions in operation are, however, involved in this procedure which cannot be compensated where a relatively high strip speed or winding speed is involved.

The invention, therefore, provides an automatic coil change device which is characterised by the fact that the coil change operation is effected by an electrical contact which co-operates with a magnetic clutch arranged in the winding assembly in such manner that the finished winding is transferred to an auxiliary roll before the severance of the fibre strip or sliver by means of a springloaded rocking arm, the auxiliary roll operating at the same peripheral speed or preferably at a higher speed than the conveyor or Winding rolls used for producing the winding so that the oncoming strip is held under tension and can be severed by a spring-loaded striker lever whereby at the same time the continuing fibre strip is laid upon the new core fed to the winding rolls which is shifted with the increase in the radial dimension of winding by reason of its bearing moving in the vertical direction.

One constructional example of the invention is shown diagrammatically in side view in the accompanying drawings wherein:

Fig. 1 is a side view in one direction, and

Fig. 2 is a side view taken at 180 to Fig. 1.

A strip or sliver of fibrous material, not shown, arriving in the direction of the arrow P is wound on to a core 4 which rests on the conveyor or winding rolls 8, 9 between which the fibre strip or sliver passes, the said rolls being operatively connected one to the other and driven in suitable manner from a driving unit, not shown. This driving unit is based upon the normal practice and since the details thereof will be readily apparent to those skilled in the art, it has not been thought necessary to show the details of this driving mechanism.

In order to avoid any possible slip between the driving rolls 8, 9 and the finished winding 12, the core 4 is loaded at both ends by means of a forked loading device 13 in such manner that a uniform and always constant Patented May 9, 1961 pressure of the winding 12 or of the core 4 on the aforesaid rolls is secured during the winding operation. The

loading device 13 is for this purpose pivotally mounted in the casing 17 about a pivot 13'.

The core 4 receiving the winding 12 is supported during the winding operation in the manner to be further described in such a way that it can follow the radial increase in the dimensionsof the winding. As soon as it has reached a definite peripheral size, which is dependent on the previously calculated and selected number of turns, the finished winding with the core is rocked away from the driving rolls 8, 9 and transferred to an auxiliary roll shown at 1.

For this purpose a magnetic clutch, not shown, is pro-- vided which is energised when the desired peripheral diat both ends in a slidable manner such that during the winding on, the continuously increasing winding H2 is free to expand. j

The lever 2 with the winding 12 on the core 4 now tilts by means of a spring 17' into the dotted position shown in Fig. 1 so that the winding 12' comes into engagement with the auxiliary roll 1 and the core 4 at both ends comes into engagement with a hinged flap shown at 5. At the same time by the rocking of the lever 2 an empty core 4' comes from a magazine 7 into the region of the driving rolls 8, 9 by the fact that a push rod 6 hinged to the lever 2 opens a magazine flap 7' whereby the new core 4' to be 'woundrolls along a guide rail 7" by its own weight and reaches the working position.

Furthermore, the rocking lever 2 operates the hinged flaps 5 already described by means of link rods v10 so that the hinged flaps move to the closed position indicated in dotted lines during this rocking movement of the lever, whereby the finished winding 12 remains initially on the auxiliary roll 1 and is also driven by the rotary movement thereof. p

The auxiliary roll 1 arranged according to the invention and preferably rotating more rapidly than the driving rolls 8 and 9 ensures that the fibre strip or sliver is pulled tight between the aforesaid rolls 8 and 9 on the one hand and the roll 1 on the other hand. The cam disc 16 which is also provided and is also in rotation releases a spring operated striker 11 mounted on a shaft 11, by suitable linkage not shown, by means of a roller 16' which seversthe tensioned fibre strip or sliver under the action of the spring 18. The striker 11 is also of curved formation as shown to lay the end of the oncoming fibre strip or sliver on the newly introduced core 4 on which the next winding is now to be formed.

When the cam discs 15 and 16 have been rotated through a predetermined amount, the lever 2 and the striker 11 both move back to the starting position whereby the hinged flap 5 is opened by the linkage rods 10 so that the previously completed winding 12' is automatically released from the device.

On the completion of the coil change an electric con tact is operated in a manner not shown and which is operated for example by the cam disc 15 whereby the magnetic clutch again disconnects the drive of the coil change mechanism from the drive shaft.

relation from said. driving rolls and disposed parallel therewith, means for automatically feeding strand receiving cores to said driving rolls, lever means rockably mounted between said driving rolls and auxiliary roll to support a core fed to the driving rolls and the winding form thereon to be driven by said driving rolls, means responsive to. the diameter of the strand material wound on said core to shift said lever in the direction of said auxiliary roll and means for severing said strand material after'a new core has been fed to the driving rolls.

2. An automatic winding device for continuous strip material, comprising a pair of closely spaced driving rolls, an auxiliary driving roll arranged in spaced apart relation from said driving rolls and disposed parallel therewith, a magazine for holding a plurality of empty cores in stacked relation so that the lowermost core can be released and deposited between said driver rolls and on top of the strand material passing thereover, a lever adapted to support the core as it is being wound and arranged for rockable movement between the driver rolls and auxiliary roller, yielding spring means for urging said lever in one direction, means responsive to the increase in diameter of the material wound on said core for transferring the core and strand material wound thereon to a position in which the strand material is;

drivingly engaged by said auxiliary roller, a spring operated striker lever to sever the strand material after an empty core has again been deposited on said driver rolls and means for guiding said cores while being wound directly above said driver rolls to support the core and strand material wound thereon in driving relation with said driving rolls.

3. An automatic windingdevice as set forth in claim 2 wherein said supporting lever and striker lever are separately controlled and in which a cam disc is provided for actuating each of said levers.

4. An automaticwinding device as set. forth in claim 2 wherein means is provided for releasing the completely wound core from, said rockably mounted support after the severance lever has been actuated.

5. An automatic winding device according to claim 2 including a push rod pivoted to the rocking lever and arranged to, control therelease of cores from said magazine one at a time for positioning between said driver, rollers during the starting of a new winding operation.

6. In an automatic, winding machine as set, forth, in, claim 2 in whicha weighted loading device is provided for exerting downward pressure on the core to frictional: ly hold the core and the strand, material in driving engagement with the driving rollers. throughout the entire winding operation and during the radial increase in diam,- eter of the material wound'on the core.

References Cited in the tile of this patent UNITED STATES PATENTS 2,676,764 Aulen Apr. 27, 1954 

